Display screen or portion thereof with graphical user interface



FIG. 1A is a front view of a left portion of a display screen or portionthereof with a graphical user interface, showing our new design; and,

FIG. 1B is a front view of a right portion of a display screen orportion thereof with a graphical user interface, showing our new design.

The outermost broken line rectangle illustrates a display screen orportion thereof. All of the text shown is illustrated with broken lines.None of the broken lines form part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof withgraphical user interface, as shown and described.